Computer case

ABSTRACT

A laptop computer protective bag, including a supportive front wall, a back wall, and a substantially rigid bridge wall that holds the front wall inclined relative to the back wall when the computer is in use resting on the front wall. Flexible side walls form a closed chamber with extremities of the front and rear walls being in close proximity when toe computer is in use, a pair of fans blowing air through the front wall for cooling a bottom surface of the computer, a vent structure permitting the air to flow through the chamber. Also disclosed is a backpack assembly that incorporated the protective bag.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of Provisional Application Ser. No. 60/975,241, filed Sep. 26, 2007, and which is incorporated herein by this reference.

BACKGROUND

The present invention relates to accessories for laptop computers, notebook computers and similar electronic devices having display screens and keyboards, and more particularly to a utilitarian case or bag for such devices.

Computer cases and bags of the prior art are generally directed to providing inclined ergonomic support for the computer while in use. Other features typically present are various carrying handles, storage cavities, and physical restraints for the computer while in use. It is believed, however, that none of the prior art provides a completely satisfactory device for protectively transporting and conveniently facilitating use of the computer as well as effectively cooling the computer.

Thus there is a need for an improved case or bag for laptop computers, notebook computers, and the like, that provides protection for such a device, that permits improved convenience in operation of the device as well as improved heat removal from the device, and that is inexpensive to provide.

SUMMARY

The present invention meets this need by providing a laptop computer bag that includes a supporting panel and fans mounted such that cooling air is blown against a bottom surface of a laptop computer that has been removed from the bag and rested on the supporting surface. In one aspect of the invention, the bag includes a front wall that provides the supporting surface; a back wall; a side wall structure including a substantially rigid bridge wall connected along an edge extremity of one of the front and back walls and connectable to the other of the front and back walls, and opposite side walls connected between the front wall and the back wall, the side wall structure being flexible for permitting edge extremities of the front and back walls opposite the bridge wall to move into close proximity when a load is carried on the front wall with the back wall resting on a supporting surface. In this condition, and with the bridge wall connected between the front and back walls, a substantially closed chamber is formed between the front and back walls. A fan is mounted on one of the walls for blowing air through the front wall, a vent structure being formed in at least one of the walls for passing air that is driven by the fan.

Preferably the air is blown outwardly through the front wall for impinging on a bottom surface of the laptop computer. The fan can be mounted to the front wall, the bag further comprising a protective grill member covering the fan. There can be a spaced pair of fans and protective grills on the front wall for improved cooling air flow. The vent structure can include a plurality of vent holes formed in each of the side walls. Alternatively, the fan can be mounted on the bridge wall, the vent structure including a vent opening formed in the front wall for passing air that is driven by the fan. There can be a first protective grill on the fan, the vent structure also including a second protective grill covering the vent opening. Also, there can be a spaced pair of the fans and corresponding first protective grills, the vent structure including a spaced pair of vent openings and second protective grills on the front wall.

The protective bag can further include one or more mouse trays slidably mounted within the bag for deployment extending through one or both of the side walls. The bag can include a riser member formed on the front wall for spacing a bottom surface of the computer away from the front wall to facilitate air flow under the computer.

Preferably the protective bag includes a wrist pad for supporting palms and/or wrists of a user when the computer is supported on the front wall, the wrist pad providing a stop for locating the computer. The wrist pad can be mounted on the front wall, the bag further comprising a bottom wall connected between the front wall and the back wall, and between the side walls, the bottom wall being flexible for permitting the edge extremities of the front and back walls opposite the bridge wall to move into close proximity. The bridge wall can be connected to the back wall as well as the front wall, the bag further comprising a strip fastener dividing the bottom wall between the front wall and the back wall, the strip fastener extending into each of the side walls for permitting the computer to be inserted therethrough when the strip fastener is in an open condition. The strip fastener can be a zipper fastener.

Alternatively, with the bridge wall connected to both front and back walls, the bag can further include a wrist pad wall foldably connected to the front wall and having the wrist pad mounted thereto; and structure for releasably securing the wrist pad wall in a closed position connected to the back wall when the computer is enclosed within the bag, the wrist pad wall having an open position substantially coplanar with the front wall. The structure for securing the wrist pad wall can include a wrist pad flap foldably extending from the wrist pad wall opposite the front wall and having a fastener for connecting the wrist pad flap in facing relation to the back wall.

The bag can include a power cable connected to the fan and having a USB plug wired thereto for powering the fan from the laptop computer. Alternatively, or additionally, the bag can include a battery pack for powering the fan.

In another aspect of the invention, the laptop computer bag includes a front wall for defining a supporting surface for a laptop computer, a back wall, an openable side wall structure connectable for enclosing the laptop computer between the front and back walls, and a fan mounted on one of the walls for blowing air through the front wall in communication with a bottom surface of the laptop computer, a vent structure being formed in at least one of the walls for passing air that is driven by the fan. Preferably the air is blown outwardly through the front wall for impinging on a bottom surface of the laptop computer. Preferably the bag includes a bridge structure for spacing corresponding bridge plane portions of the front wall and the back wall at a predetermined first wall spacing, and the side wall structure incorporates flexible elements for permitting variable spacing between the front and back walls except along the bridge plane portions thereof, for permitting edge extremities of the front and back walls opposite the bridge structure to move into a reduced second wall spacing when the laptop computer is carried on the front wall with the back wall resting on a supporting surface, the front wall being inclined relative to the back wall.

In yet another aspect, the laptop computer bag includes a wall structure defining an openable chamber for receiving the computer and for supporting the computer external to the chamber for operation thereof, a fan mounted on the wall structure, and inlet and outlet openings formed in the wall structure for passing air that is driven by the fan in communication with a bottom surface of the laptop computer. Preferably the air is blown outwardly through the wall structure for impinging on a bottom surface of the laptop computer

In a further aspect of the invention, a backpack assembly includes a main storage bag having a pair of shoulder straps, and the laptop computer bag removably fastened to a front wall of the main storage bag. The fastening can include a strip fastener pair having a first element affixed to the front wall of the main storage bag and a second element affixed to a corresponding location on the back wall of the protective bag, and a safety flap projecting forwardly from the main storage bag and having a first safety fastener element thereon, a second safety fastener element being affixed to a corresponding location on the front wall of the protective bag.

DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood with reference to the following description, appended claims, and accompanying drawings, where:

FIG. 1 is a perspective view of a protective computer bag according to the present invention, the bag being in an upright closed condition;

FIG. 2 is a perspective view as in FIG. 1, showing the bag in an open condition;

FIG. 3 is a perspective view of the bag of FIG. 1 in a collapsed and deployed condition for supporting a laptop computer;

FIG. 4 is a perspective view as in FIG. 1, showing an alternative configuration of the computer bag;

FIG. 5 is a perspective view of the bag of FIG. 4, from a different perspective;

FIG. 6 is a perspective view showing a back side of the bag of FIG. 4;

FIG. 7 is a perspective view as in FIG. 6, showing the bag of FIG. 4 in an open condition with a laptop computer partially inserted therein;

FIG. 8 is a perspective view as in FIG. 3, showing the bag of FIG. 4 in a collapsed condition supporting the laptop computer;

FIG. 9 is perspective view as in FIG. 8, showing the bag of FIG. 4, and showing the laptop computer in an open condition, with supporting panels of the bag deployed and with a computer mouse resting on one of the panels;

FIG. 10 is a perspective view as in FIG. 9, showing a seated user operating the computer;

FIG. 11 is a perspective view showing yet another configuration of the computer bag of FIG. 1;

FIG. 12 is perspective view showing a variation of the configuration of FIG. 11;

FIG. 13 is a perspective view showing an alternative briefcase configuration of the bag of FIG. 11;

FIG. 14 is a side elevational view showing the briefcase of FIG. 13 in an open condition for receiving a laptop computer;

FIG. 15 is a side view as in FIG. 14, showing the briefcase of FIG. 13 positioned for use supporting a laptop computer;

FIG. 16 is a rear oblique perspective view showing the computer bag configured generally as in FIG. 4 and forming part of a backpack assembly;

FIG. 17 is a side view of the backpack assembly of FIG. 16;

FIG. 18 is a front oblique perspective view of the backpack assembly of FIG. 16;

FIG. 19 is a side view as in FIG. 17, showing the computer bag disassembled from a remainder of the backpack assembly;

FIG. 20 is a perspective view as in FIG. 18, showing the separated condition of FIG. 19;

FIG. 21 is a side view showing the computer bag of FIG. 16 positioned for use supporting a laptop computer; and

FIG. 22 is a side view as in FIG. 21, showing the bag in an open condition for receiving the laptop computer.

DESCRIPTION

The present invention is directed to a protective bag or case for a portable electronic device such as a laptop computer or notebook computer, that is particularly effective in both protecting the computer for transport, and facilitating convenient use of the computer while greatly reducing heat build-up within the computer. With reference to FIGS. 1-3 of the drawings, a protective bag 10 includes a front wall 12, a foldably connected bridge wall 14, a back wall 16, and opposite side walls 18 connected between the front and rear walls, the side walls being flexible for permitting portions of the front and back walls to move into close proximity.

The bridge wall 14 has a bridge flap 20 foldably extending therefrom opposite the front wall 12, a plurality of hidden fastener pairs 22, such as magnetic fasteners, being located in the bridge flap and the rear wall 16 for releasably securing the bridge flap in a closed condition, respective first fastener elements 22A being fixed within the back wall 16 and second fastener elements being secured at corresponding locations within the bridge flap 20. The bridge wall 14 is sufficiently stiff to hold the front and rear walls 12 and 16 spaced apart by a distance S when the bridge flap 20 is secured to the back wall 16 by the bridge fasteners 22. A pair of fans 24 is mounted in spaced relation on the front wall 12 and having respective protective grill members 25 covering them. Also, a pair of riser members 26 are formed and/or secured to the front wall 12 in a suitable manner for facilitating air flow from the fans 24 against a bottom surface of the laptop computer. Further, a plurality of vent openings 27 are formed in each side wall 18 for admitting air into the bag during operation of the fans 24. It will be understood that while the above-described direction of cooling air flow is preferred, the opposite direction of flow is also contemplated within the scope of the present invention.

As further shown in FIG. 1, the bag 10 is provided with a pair of connecting rings 28 anchored to respective ones of the side walls 18 proximate the bridge wall 14 for attachment of a shoulder belt 29 in a conventional manner. Power for the fans 24 is delivered through a power cable 30 that has a conventional USB plug 31 at a free end thereof. The plug 31 can be inserted in an available USB socket of the computer (not shown). Alternatively, fan power can be from a battery pack incorporating a battery or batteries as described below in connection with FIG. 13. The battery pack can also have a USB socket adapter connected thereto for receiving the plug 31.

As further shown in the drawings, a pair of mouse trays 32 is slidably supported within the bag 10 and extendable through corresponding side walls 18. Each tray can be provided with a pull tab 33 to facilitate deployment thereof for operation of a computer mouse (not shown) either right-handed or left-handed, and/or for supporting notes or other reference material during operation of a laptop computer (not shown) being supported by the risers 26 on the front wall 12.

In the exemplary configuration shown in FIGS. 1-3, a wrist pad wall 34 is foldably connected to the front wall 12 opposite the bridge wall 14, the wall 34 having a wrist pad 35 formed thereon. The wrist pad wall 34 also has a wrist pad flap 36 foldably extending therefrom opposite the front wall 12, a plurality of fastener pairs 38, such as hook-loop fasteners, being located on the wrist pad flap and the rear wall 16 for releasably securing the wrist pad flap in a closed condition, respective first fastener elements 38A being fixed on the back wall 16 and second fastener elements 38B being secured at corresponding locations on the wrist pad flap 36. As shown in FIG. 1, the bag 10 forms a closed container for the computer when the wrist pad flap 36 is secured to the back wall 16. According to the present invention, when the bag 10 is placed with the back wall 16 on a supporting surface with the bridge wall 14 connecting the back wall by the bridge flap 20 secured to the back wall, and with the wrist pad wall 34 in an open position, the front wall 12 assumes a sloping orientation relative to the back wall 16 when loaded, for example, by a laptop computer resting thereon. In this condition, shown in FIG. 3, the wrist pad wall 34 can also rest on the supporting surface, substantially coplanar with the back wall (to the extent that the supporting surface is also planar), the front wall 12 contacting the rear wall 16 opposite the bridge wall 14. Also, the wrist pad 35 projects upwardly relative to the front wall 12 in the condition of the bag 10 shown in FIG. 3, the pad serving as a stop for locating the computer as well as a support for palms and/or wrists of a user. As described herein, although the bag 10 is substantially closed in the condition of FIG. 3, the cooling air is allowed to flow into (or out of) the bag through the openings 27 during operation of the fans 24.

As further shown in FIG. 2, the wrist pad wall 34 is provided with counterparts of the fasteners 38A for engagement by the fasteners 38B to hold the wrist pad flap 36 against the wrist pad wall 34 during use of the bag as shown in FIG. 3.

Suitable materials for the walls 12, 14, 16, 18, and 34, as well as the flaps 20 and 36 and the riser members 26, include leather, leatherette, and other suitable plastics, the front wall 12, bridge wall 14, and wrist pad wall 34 being reinforced by suitable rigid and/or semi-rigid members (not shown). The wrist pad 35 can be formed of any suitable resilient material and covered with the same leather, leatherette, etc., material of the various walls. Suitable devices for the fans 24 are commercially available and having a thickness of approximately 0.63 inch, being approximately 2.38 inches square. As further shown in FIG. 3, the front panel 12 has a length L (which can be approximately 17 inches or other suitable length for accommodating the width of computers to be placed thereon) between the side walls 18, and a width W (which can be approximately 14 inches) between the bridge wall 14 and the wrist pad wall 34. Also, the wrist pad wall 34 can have a width B between the front wall 12 and the wrist pad flap 36, and the bridge wall 14 can have a width S between the front a d back walls 12 and 16. Preferably the widths B and S are approximately the same (such as approximately 3 inches) for spacing the front and back walls substantially parallel in the closed condition of the bag shown in FIG. 1.

With further reference to FIGS. 4-10, an alternative configuration of the bag, designated 10′, includes counterparts of the front wall, designated 12′, the bridge wall 14, the back wall, designated 16′, the side walls 18, the bridge flap 20, the fasteners 22, the fans 24, the grill members 25, the vent openings 27, the connecting rings 28 and shoulder belt 29, the power cable 30, and the mouse trays 32. A counterpart of the wrist pad, designated 35′, is formed directly on the front wall 12′, a flexible counterpart of the wrist pad wall, designated bottom wall 40, is connected between the front and rear walls 12′ and 16′, and between the side walls 18. Thus the bottom wall 40, as well as the side walls 18, collapses when the laptop computer, designated 42, is placed thereon as shown in FIGS. 8 and 9. As used herein and below, the correspondingly numbered elements, with or without primes (′, ″, or ′″), are intended to be substantially functionally equivalent.

A counterpart riser member, designated 26′, is formed on the front wall 12′ between the fans 24 and the bridge wall 14. Preferably the front wall is somewhat flexible between the riser member 26′ and the wrist pad 35′, permitting a region thereof surrounding the fans 24 to sag somewhat in the condition of FIGS. 8 and 9, thereby facilitating the passage of cooling air from the fans and against the bottom surface of the computer 42 notwithstanding the inclusion of only one riser member counterpart 26′. Further, with suitable components for the fans 24 being commercially available with thicknesses on the order of ⅝ inch, the region of the front wall 12′ can flex slightly outwardly without projecting beyond the wrist pad 35′ when the computer 42 is inside and filling the bag 10′.

FIG. 4 shows the bag 10′ in an upright, closed condition in which the laptop computer 42 can be protectively enclosed therein. FIG. 5 more clearly shows one of the end walls 18. FIG. 6 shows a back side of the bag 10′, the back wall 16′ having a zipper closure 44 for an internal storage pocket, and a clasp 46 for securing the bridge wall 14 and flap 20 in a closed condition, the clasp substituting for the fasteners 22, described above for the configuration of FIGS. 1-3. Also, in further accordance with the present invention, the back wall 16′ incorporates a fastener strip 48 for attachment to a back pack, described below, thereby to facilitating more convenient carrying of the bag 10′.

FIG. 7 shows the bag 10′ in an open condition, with the computer 42 being inserted or withdrawn therefrom. FIG. 8 shows the bag 10′ resting with the back wall on a supporting surface 49, with the computer 42 in place on the front wall 12′ and the riser member 26′, the computer being closed. FIG. 9 shows the bag 10′ and computer 42 as in FIG. 8, but with the computer open and the mouse trays 32 in respective deployed conditions, a computer mouse 50 resting on one of the trays, and with the USB plug 31 of the power cable 30 plugged in to a USB port of the computer. FIG. 10 shows the bag 10′ with the computer 42 in use by a seated user 52, the back wall 16′ being preferably somewhat flexible for cushioning the legs of the user.

With further reference to FIG. 11, another alternative configuration of the bag, designated 10″, includes counterparts of the front wall 12′, the bridge wall, designated 14′, the back wall 16′, the side walls 18, the bridge flap 20, the fasteners 22, the fans 24, the grill members 25, the riser member 26′, and the wrist pad 35′ on the front wall 12′, the connecting rings 28 on the side walls 18 and shoulder belt 29, the power cable 30, the mouse trays 32, and the bottom wall 40 as described above in connection with FIGS. 4-10. The fans 24 and grill members 25 are relocated on the bridge wall 14′, with air flow preferably directed into the bag 10″. Counterparts of the grill members 25 are mounted on the front wall 12′ for protectively covering corresponding vent openings 27′, the vent openings 27′ being sized and located approximately as the fans 24 of the previously described computer bags 10 and 10′. (See, for example, FIGS. 3 and 4.) The previously described vent openings 27 in the side walls 18 of the bags 10 and 10′ are not formed in the side walls 18′ of the instant computer bag 10″.

With further reference to FIG. 12, another configuration of the bag, designated 10′″, is a variation of the bag 10″ of FIG. 11, having the fans 24 and grill members 25 relocated to respective side walls, designated 18′. The bag 10′″ includes the bridge wall 14 (as in the configurations of FIGS. 1-10 (not supporting the fans 14). The fans are located in the side walls 18 proximate the bridge wall 14, it being understood that the side walls 18′ are subjected to incidental flexure only within regions close to the bridge wall 14. In this configuration, the connecting rings 28 are relocated proximate opposite ends of the bridge wall 14.

With further reference to FIGS. 13-15, yet another configuration of the protective bag, designated protective briefcase or bag 11, includes the fans 24 and grill members 25 as well as the riser member 26′ and the wrist pad 35′ on the front wall 12′ as described above in connection with FIGS. 4-10, but with the vent openings 27 located on a counterpart of the bridge member, designated 14″, the bridge member being directly connected to the back wall 16 as well as the front wall 12′, with the vent openings 27 being relocated thereto between opposite hinged connections of a handle, designated 21′. Counterparts of the side walls, designated 18″, and the bottom wall, designated 40′, are split, being openably connected by a zipper closure 54, the bag 11 being openable with the front wall 12′ pivoting beyond a perpendicular relation to the back wall 16′ in the manner of a briefcase as shown in FIG. 14 for receiving the laptop computer 42. FIG. 15 shows the bag 11 with the bottom wall 40′ and the sidewalls 18″ partially collapsed in a closed condition of the bag and supporting the laptop computer in a convenient sloping orientation relative to the supporting surface 49.

Further shown in FIG. 13 is a battery pack 43 that is mounted to the front panel 12′ inside the bag and between the fans 24. The battery pack can include three or four conventional Type AA 1.5 volt batteries and an on-off switch (not shown). Suitable battery packs for use in the present invention are commercially available with approximate dimensions of 2.4 inches square and 0.75 inch thick. It will be understood that the battery pack 43 and/or the power cable 30 with its USB plug 31 can be provided in any of the configurations of the protective laptop bag described herein, and further that those having skill in computer electronics can provide appropriate wiring for powering the fans selectively from the battery pack or a laptop USB port. For example, the battery pack can be wired directly to the fans, with the on/off switch (not shown) used to turn the fans on or off. Alternatively, the battery pack can have a USB adaptor for receiving the plug 31.

With further reference to FIGS. 16-22, a backpack assembly 60 incorporates a computer bag 110 configured generally as described above in FIG. 4, except as described below and shown in the drawings. As shown in FIG. 16, the backpack assembly 60 includes a main storage bag 62 having a pair of shoulder straps 64, the computer bag 110 being removably affixed against the front of the computer bag 110 as described below. The main storage bag 62 also incorporates a main flap closure 66, an auxiliary (zipper) closure 68, and an associated auxiliary compartment 69 in a conventional manner as further shown in FIG. 16.

The computer bag 110 includes counterparts of the front wall 12′, bridge wall 14″, back wall 16′, side walls 18, riser 26′, and wrist pad 35′ as described above in connection with FIGS. 4-10. The bag 110 can be provided without a handle. The bridge wall 14″ is connected directly between the front wall 12′ and the rear wall 16′, the bag also having a counterpart of the bottom wall 40′ as described above in connection with FIGS. 13-15, a counterpart of the zipper closure, designated 54′ extending only a short distance into each side wall 18 for opening the bag 110 for inserting and removing the laptop computer 42 as shown in FIG. 21. It will be understood that the bottom wall 40′ can be narrowed, for example, to consist only of the zipper closure 70. Also, the front wall 12′ can be configured to flex somewhat along the wrist pad 35′ to accommodate the thickness of the laptop computer 42 when the closure 70 is in its closed condition.

The connection between the computer bag 11 and the main storage bag 62 is effected by at least one and preferably a pair of pack fastener strips 72 that are affixed to a front wall 73 of the main storage bag 62, the fastener strips 72 releasably engage a corresponding pair of fastener strips 48 that are affixed to the back wall 16′ of the bag 11, one such fastener strip being shown and described above in connection with FIG. 6. (Three each of the fastener strips 48 and 73 are shown in FIG. 19.) The fastener strips can comprise hook and loop type fasteners. The main storage bag 62 also is provided with a safety flap 74 that extends against the bridge wall 14 and having safety (snap) fasteners 76 that releasably engage corresponding safety fasteners 78 on the front wall 12′ between the riser member 26′ and the bridge wall as best shown in FIGS. 18-20. The connection between the computer bag 110 and the main storage bag 62 can be effected by other conventional means such as with straps and ties or other fasteners.

Although the present invention has been described in considerable detail with reference to certain preferred versions thereof, other versions are possible. For example, the bridge wall 14 of FIGS. 1-3 can be foldably connected to the back wall 16 (or 16′), the bridge flap 20 being fastenable to the front wall 12 (or 12′). Also, in the configuration of FIG. 12, the connecting rings 28 can be relocated to the side walls 18′ adjacent the bridge wall 14′. Further, the bag 110 of FIGS. 16-22 can include the zipper fastener 54 extending fully to proximate the bridge wall 18″ as described in connection with FIGS. 13-15. Therefore, the spirit and scope of the appended claims should not necessarily be limited to the description of the preferred versions contained herein. 

1. A protective bag comprising: (a) a front wall for providing a supporting surface for a laptop computer; (b) a back wall; (c) a side wall structure connectable between the front and back walls for enclosing the laptop computer, the side wall structure comprising: (i) a substantially rigid bridge wall connected along an edge extremity of one of the front and back walls and connectable to the other of the front and back walls; and (ii) opposite flexible side walls connected between the front wall and the back wall; (d) the side wall structure being flexible for permitting edge extremities of the front and back walls opposite the bridge wall to move into close proximity when the laptop computer is carried on the front wall with the back wall resting on a supporting surface, the front wall being inclined relative to the back wall, a substantially closed chamber being formed between the front and back walls when the bridge wall is connected between the front and back walls; and (e) a fan mounted on one of the walls for blowing air through the front wall in communication with a bottom surface of the laptop computer, a vent structure being formed in at least one of the walls for passing air that is driven by the fan.
 2. The protective bag of claim 1, wherein the air is blown outwardly through the front wall for impinging on a bottom surface of the laptop computer.
 3. The protective bag of claim 1, wherein the fan is mounted to the front wall, the bag further comprising a protective grill member covering the fan.
 4. The protective bag of claim 3, comprising a spaced pair of fans and protective grills on the front wall.
 5. The protective bag of claim 3, wherein the vent structure comprises a plurality of vent holes formed in each of the side walls.
 6. The protective bag of claim 1, wherein the fan is mounted on the bridge wall, the vent structure comprising a vent opening formed in the front wall for passing air that is driven by the fan.
 7. The protective bag of claim 6, further comprising a first protective grill on the fan, and wherein the vent structure further comprises a second protective grill covering the vent opening.
 8. The protective bag of claim 7, comprising a spaced pair of fans and corresponding first protective grills, the vent structure comprising a spaced pair of vent openings and second protective grills on the front wall.
 9. The protective bag of claim 1, further comprising a mouse tray slidably mounted within the bag for deployment extending through one of the side walls.
 10. The protective bag of claim 9, comprising mouse trays oppositely deployable through both side walls.
 11. The protective bag of claim 1, further comprising a riser member formed on the front wall for spacing a bottom surface of the computer away from the front wall to facilitate air flow under the computer.
 12. The protective bag of claim 1, further comprising a wrist pad for supporting palms and/or wrists of a user when the computer is supported on the front wall, the wrist pad providing a stop for locating the computer.
 13. The protective bag of claim 12, wherein the wrist pad is mounted on the front wall, the bag further comprising a bottom wall connected between the front wall and the back wall, and between the side walls, the bottom wall being flexible for permitting the edge extremities of the front and back walls opposite the bridge wall to move into close proximity.
 14. The protective bag of claim 13, wherein the bridge wall is connected to the back wall, the bag further comprising a strip fastener dividing the bottom wall between the front wall and the back wall, the strip fastener extending into each of the side walls for permitting the computer to be inserted therethrough when the strip fastener is in an open condition.
 15. The protective bag of claim 14 wherein the strip fastener is a zipper fastener.
 16. The protective bag of claim 14, wherein the strip fastener extends in each of the side walls to proximate the bridge wall for permitting the front wall to open beyond a perpendicular relation to the back wall.
 17. The protective bag of claim 12, wherein the bridge wall is connected to the back wall, the bag further comprising: (a) a wrist pad wall foldably connected to the front wall and having the wrist pad mounted thereto; and (b) means for releasably securing the wrist pad wall in a closed position connected to the back wall when the computer is enclosed within the bag, the wrist pad wall having an open position substantially coplanar with the front wall.
 18. The protective bag of claim 17, wherein the means for securing the wrist pad wall comprises a wrist pad flap foldably extending from the wrist pad wall opposite the front wall and having a fastener for connecting the wrist pad flap in facing relation to the back wall.
 19. The protective bag of claim 1, further comprising a power cable connected to the fan and having a USB plug wired thereto for powering the fan from the laptop computer.
 20. The protective bag of claim 19, further comprising a battery pack supported within the bag for powering the fan.
 21. The protective bag of claim 1, further comprising a battery pack supported within the bag for powering the fan.
 22. The protective bag of claim 21, further comprising a power cable connected to the fan and having a USB plug wired thereto for powering the fan from the laptop computer.
 23. A protective bag comprising: (a) a front wall for defining a supporting surface for a laptop computer; (b) a back wall; (c) an openable side wall structure connectable for enclosing the laptop computer between the front and back walls; and (d) a fan mounted on one of the walls for blowing air through the front wall in communication with a bottom surface of the laptop computer, a vent structure being formed in at least one of the walls for passing air that is driven by the fan.
 24. The protective bag of claim 23, wherein the air is blown outwardly through the front wall for impinging on a bottom surface of the laptop computer.
 25. The protective bag of claim 23, further comprising a bridge structure for spacing corresponding bridge plane portions of the front wall and the back wall at a predetermined first wall spacing wherein the side wall structure incorporates flexible elements for permitting variable spacing between the front and back walls except along the bridge plane portions thereof, for permitting edge extremities of the front and back walls opposite the bridge structure to move into a reduced second wall spacing when the laptop computer is carried on the front wall with the back wall resting on a supporting surface, the front wall being inclined relative to the back wall.
 26. A protective bag for a laptop computer, comprising: (a) a wall structure defining an openable chamber for receiving the computer and for supporting the computer external to the chamber for operation thereof; (b) a fan mounted on the wall structure; and (c) inlet and outlet openings formed in the wall structure for passing air that is driven by the fan in communication with a bottom surface of the laptop computer.
 27. The protective bag of claim 26, wherein the air is blown outwardly through the wall structure for impinging on a bottom surface of the laptop computer.
 28. A backpack assembly comprising: (a) the protective bag of claim 23; (b) a main storage bag having a pair of shoulder straps; and (c) means for releasably connecting the protective bag to a front wall of the main storage bag.
 29. The backpack assembly of claim 28, wherein the means for connecting comprises: (a) a strip fastener pair having a first element affixed to a front wall of the main storage bag and a second element affixed to a corresponding location on the back wall of the protective bag; and (b) a safety flap projecting forwardly from the main storage bag and having a first safety fastener element thereon, a second safety fastener element being affixed to a corresponding location on the front wall of the protective bag. 